Modeling the Global Distribution of Plasma Parameters on Coronal Source Surface for Different Solar Phases Using 1AU Observations | |
Yang, Yi; Shen, Fang; Feng, Xueshang; Shen, F (reprint author), Chinese Acad Sci, SIGMA Weather Grp, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China. | |
Department | 空间科学部 |
Source Publication | NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2014 |
2015 | |
Pages | 168-173 |
Language | 英语 |
ISBN | 978-1-58381-880-0 |
Abstract | In this paper, we have developed an empirical model of the global distribution of plasma parameters on the coronal source surface (at 2.5 solar radii (Rs) in our study) by analyzing observations from Ulysses and OMNI data. We use this model to construct the global map of source surface plasma for four typical Carrington Rotations (CRs) during different phases of solar activity, and analyze the basic characteristics of the distribution. A simple validation of the model is made by comparing the density and velocity distribution with the pB-inversed density and Wang-Sheeley-Arge (WSA) model velocity. The preliminary results show that our model gives reasonable large scale distribution of source surface plasma parameters at different phases of solar activity. |
Conference Name | 9th Annual International Conference on Numerical Modeling of Space Plasma Flows (ASTRONUM-2014) |
Conference Date | JUN 23-27, 2014 |
Conference Place | Long Beach, CA |
Indexed By | CPCI |
Document Type | 会议论文 |
Identifier | http://ir.nssc.ac.cn/handle/122/5414 |
Collection | 空间科学部 |
Corresponding Author | Shen, F (reprint author), Chinese Acad Sci, SIGMA Weather Grp, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China. |
Recommended Citation GB/T 7714 | Yang, Yi,Shen, Fang,Feng, Xueshang,et al. Modeling the Global Distribution of Plasma Parameters on Coronal Source Surface for Different Solar Phases Using 1AU Observations[C],2015:168-173. |
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2016498-0168.pdf(2767KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Download |
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